丨 Product Introduction
1. High data output: Supports up to 50Hz data output, suitable for high-speed mobile drone positioning, ensuring continuous and stable trajectory tracking.
2. Compatibility: Fully compatible with automatic flight control systems such as Pixhawk and APM, making it easy to integrate multiple flight platforms.
3. Built in IUD: solves the problem of positioning interruption caused by satellite signal loss of lock.
4. Compass configuration: Built in electronic compass RM3100 to enhance signal accuracy.
丨 Specification parameters
|
Chip
characteristics
|
chip
|
UM981
|
|
working
frequency
|
BDS: B1I B2I B3I B1C B2a B2b
GPS: L1 C/A L1C L2P (Y) L2C L5
GLONASS: L1 L2
Galileo: E1 E5a E5b E6
QZSS: L1 L2 L5 L6
NavIC L5
SBAS L1C/A
|
|
Receiving channel
|
1408 channel
|
|
Sensitivity
|
track
|
-167 dBm
|
|
cold boot
|
-148 dBm
|
|
Hot start
|
-157 dBm
|
|
First positionin
time TTFF
|
cold boot
|
26s
|
|
Hot start
|
2s
|
|
Re capture
|
2s
|
|
Inertial navigation accuracy
|
<5% x driving distance (no GNSS signal)
|
|
Accuracy
|
Horizontal Accuracy
|
Normal positioning: 1.5m CEP
|
|
RTK positioning: 0.8cm+1 ppm CEP
|
|
speed accuracy
|
0.05m/s
|
|
Second pulse accuracy
|
30ns
|
|
Output data
|
Baud rate
|
115200bps (default) [Optional: 4800-921600]
|
|
Output interface
|
TTL
|
|
Output Protocol
|
NMEA0183、Unicore
|
|
Data update frequency
|
100Hz (IMU Raw Data)
|
|
Default 1Hz (0.25Hz-50Hz)
|
|
Carrier phase output
|
Support, output RAWX statement
|
|
FLASH
|
built-in
|
|
Working
conditions
|
height
|
＜50,000m
|
|
speed
|
＜500m/s
|
|
Gravitational acceleration
|
＜4g
|
|
Electrical
specifications
|
working voltage
|
3V-5.5V DC
|
|
power waste
|
800mW @3.3V
|
|
Physical
parameters
|
size
|
Standard version:φ42*31.2mm
Upgraded version:φ44*40.6mm
|
|
weight
|
Standard version: 13.2g
Upgraded version: 21g
|
|
Connector
|
GH1.25mm 8pin
|
|
Environment
|
working temperature
|
-35℃-80℃
|
|
Storage temperature
|
-40℃-85℃
|
|
Compass
|
Compass
|
RM3100
|
丨 product mix
Standard version:
Upgraded version:
Table 1 PIN Function
|
NO.
|
Signal Name
|
Signal Description
|
|
1
|
VCC
|
Main power input, +3.3V to 5V
|
|
2
|
GND
|
Module ground
|
|
3
|
TX1
|
UART1 output, 3.3V TTL
|
|
4
|
RX1
|
UART1 input, 3.3V TTL
|
|
5
|
SCL
|
I²C Serial Clock （RM3100）
|
|
6
|
SDA
|
I²C Serial Data （RM3100）
|
|
7
|
TX2
|
UART2 output, 3.3V TTL
|
|
8
|
RX2
|
UART2 input, 3.3V TTL
|
Product Overview
The DALANG AK723RMG is a next-generation RTK/INS integrated navigation module based on the UM981 chip. Built on the NebulasIV GNSS SoC, it delivers 100 Hz positioning output and maintains continuous positioning in GNSS-denied environments through integrated MEMS sensors and U-Fusion algorithms.
Multi-System Support
Supports BDS, GPS, GLONASS, Galileo, QZSS, NavIC, and SBAS for reliable positioning.
INS Integration
Onboard IMU provides <5% distance error in inertial navigation mode when satellite signals are unavailable.
Compact Design
Weighing only 13.2g with dimensions of Φ44×40.6mm, ideal for weight-sensitive applications.
Key Features
-
100 Hz Output: Meets high-dynamic positioning requirements
-
All-System Support: Compatible with 7 global navigation systems
-
INS Navigation: <5% distance error without GNSS signals
-
Industrial Reliability: Operating temperature -35℃ to 80℃
-
Lightweight: 13.2g for easy integration
-
RM3100 Magnetometer: Provides accurate heading reference
Built for UAVs, agriculture, and surveying applications requiring continuous precision positioning. DALANG AK723RM - your reliable choice in challenging environments.
About Us
DALANG is a dedicated manufacturer of high-performance GNSS modules and RTK positioning solutions, serving industries such as UAV navigation, precision agriculture, and geospatial mapping. With a clear focus on accuracy, reliability, and integration flexibility, we support both standard and custom applications across global markets. Our product lines are engineered to meet the evolving demands of real-time positioning with support for multiple GNSS constellations, including GPS, GLONASS, BDS, and Galileo.
Our production facility spans 2,500㎡ and includes advanced SMT lines, in-house R&D labs, and full functional testing for every unit shipped. With a team of 30+ GNSS engineers, we design and manufacture over 200,000 GNSS receivers and modules annually. Certified to ISO9001:2015, and compliant with CE and RoHS standards, we follow a strict quality assurance process from prototyping through mass production. We also provide firmware updates, system integration support, and full lifecycle product documentation.
Trusted by partners in over 30 countries, DALANG delivers fast, scalable manufacturing with personalized technical support. Our streamlined collaboration model—covering inquiry, consultation, prototyping, and delivery—ensures efficiency from first contact to deployment. Whether you're sourcing off-the-shelf GNSS hardware or launching a customized solution, DALANG is your dependable partner for accurate, cost-effective positioning systems.
FAQ
1. Who are we?
We are DALANG, a specialized manufacturer of GNSS modules and RTK positioning systems based in China, with a focus on high-precision solutions for UAVs, surveying, and smart agriculture.
2. How can we guarantee quality?
All products undergo strict multi-stage quality control, including SMT production, functional testing, and 100% final inspection. We are ISO9001:2015 certified and follow international compliance standards such as CE and RoHS.
3. What can you buy from us?
You can purchase GNSS receivers, RTK modules, base stations, antennas, flight control positioning systems, and other GNSS-related components and accessories.
4. Why should you buy from us not from other suppliers?
We combine strong in-house R&D, flexible OEM/ODM support, industrial-grade quality assurance, and fast global delivery. Our expertise in GNSS RTK ensures stable, accurate, and scalable solutions tailored to your specific use case.
5. What services can we provide?
We offer OEM/ODM customization, technical consulting, firmware support, prototyping, and global after-sales service. Our team works closely with international clients to ensure efficient communication and long-term support.
